198966167 has 2 divisors, whose sum is σ = 198966168. Its totient is φ = 198966166.

The previous prime is 198966151. The next prime is 198966191. The reversal of 198966167 is 761669891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198966167 - 2⁴ = 198966151 is a prime.

It is a super-2 number, since 2×198966167² = 79175071221343778, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198966137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99483083 + 99483084.

It is an arithmetic number, because the mean of its divisors is an integer number (99483084).

Almost surely, 2^198966167 is an apocalyptic number.

198966167 is a deficient number, since it is larger than the sum of its proper divisors (1).

198966167 is an equidigital number, since it uses as much as digits as its factorization.

198966167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 53.

The square root of 198966167 is about 14105.5367498015. The cubic root of 198966167 is about 583.7941577284.

The spelling of 198966167 in words is "one hundred ninety-eight million, nine hundred sixty-six thousand, one hundred sixty-seven".